Roller for forming tapered tubes



(N0 Motil.) E. WIBSNER.

ROLLER FOR FORMING .TAPBRED TUBES.

' Patented Nov. 9, 1886.

, Vita asses.-

6M MW% UNITED STATES PATENT ()FFICE.

EBERHABD WIESNER, F BALTIMORE, MARYLAND. 4

ROLLER FOR FORMING TAPERED TUBES.

SPECIFICATION forming part of Letters Patent No. 352,172, dated November 9, 1886.

Application filed J une 25, 1886. Serial No. 206,272. (No model.)

To aZZ whom it may concern:

Be it known that I, EBERHARD WIESNER, a citizen of the United States, residing at Baltimore, in the State of Maryland,have invented certain new and useful Improvements in Roll- .ers for Forming Tapered Tubes; and. I do and to the letters and figures of reference marked thereon, which form apart of this specification.

My invention relates to improvements in rollers, as illustrated in the accompanying drawings, in which Figurel is a side elevation of the machine;

Fig. 2, a top View, with the upper roller and its frame removed, showing the position of the curling-plate; Fig. 3, an end view looking toward the tapered end of rollers.

Similar letters refer to similar parts throughout the several views.

The letter Adesignates the frame of the machine, provided with the standards a and a, which in this instance are bored out to form the bearing for the under roller, B,- but instead boxes may be fitted therein for the roller in any well-known manner.

To the standard a, above the roller B, is pivoted the frame 0, that carries the upper roller, D, by means of the lugs a, projecting upon either side of the frame 0, and the pin a which passes through the lugs and frame, thus permitting the frame to slightly oscillate thereon as the other end vertically moves between the sides of the guide b,'which closely fit against either side of it, and thereby prevent any sidewise movement,'but allows the frame 0 tobe lifted by the spring a, placed thereunder, when the eccentric E is rotated,

and thus lifting the tapered end of the roller D, which permits the sheet metal to be placed between the tapered portions of the rollers in a position ready to be acted upon.

The cap F is attached to the guide b by suitable screws, and is provided with the lugs 07,

between which is pivoted the eccentric E. Through the cap extends the pin 6, the lower end of which rests on the frame (land the upper end against the face of the eccentric E in such a manner that when the eccentric is on against the lower one. The rollers B and D are formed tapering, so thatfone portion of the sheet metal is moved faster than the other and are driven in unison by the pinions G, attached to each shaft. To the lower one, B, is secured the handle H, by which the machine is operated, or instead thereof, when it is desirable to drive the same by power, a pulley can be used. The rollers are held in their the collars f, which are placed on either side of the bearings, and pinned to the shafts or attached thereto in any suitable manner.

The curling-plate I is secured to the standards t by means of the screws h, which pass through the slots g. The said slots permit the plate to be adjusted toward or from the rollers at either or both ends, as shown by dotted lines, and then held from being moved from the rollers by the set-screws k. r The function of having the plate so adjustable is to slightly vary the form of the tube-as, for instance, if the large end of the tube to be formed requires to be made smaller, the corresponding end of the plate is moved toward the rollers, or vice versa, and likewise with the end forming the smaller end of the tube; but if it is desired to form the whole of the tube larger, the plate is evenly moved from the roller, or when it is desired to form the tube smaller, the plate is then moved toward the roller. Therefore it is obvious that any desired fornror taper may be obtained. The edge I of the curling-plate is concaved,so that as the sheet metal passes from the rollers it comes in contact therewith and is thereby curled.

In operating my invention. the sheetmetal is first cut to the proper shape and then placed between the rollers, with thelarger end of the blank placed in contact with the larger diameter of the rollers, which draws the metal through and forces it against the concave edge Zof the curling-plate, which turns the metal to the desired cylindrical form, as regulated by the position of the curling-plate, as hereinbefore set forth.

Having described my invention, what I claim, and wish to secure by United States Patent,

proper position in relation to the hearing by its center, or nearly so, the roller D is pressed 1. In rollers for forming tapered tubes, the I combination of the tapered rollers B and D, 3. The combination of the tapered rollers B the curling-plate I, mechanism to adjust either and D, the curling-plate I, and the pinions G,

or both ends of the plate to and from the rollarranged to operate the rollersin unison, as set ers, and the pinions G, for the purpose set forth.

forth. In testimony whereof I affix my signature in I 5 2. I11 rollers for forming tapered tubes, the presence of two Witnesses.

combination of the tapered rollers B and D, EBERHARD \VIESNER. the curling-plate I, and mechanism to adjust Vitnesses: either or both ends of the plate I to and from G. A. BOYDEN,

IO the rollers, for the purpose specified. I J NO. 'I. MADDOX. 

